ISO/IEC 8823-2:1997 情報技術—オープンシステム相互接続—コネクション型プレゼンテーションプロトコル：プロトコル実装適合性ステートメント（PICS）プロフォーマ | ページ 2

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.

In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.

International Standard ISO/IEC 8823-2 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 21, Open systems interconnection, data management and open distributed processing, in collaboration with ITU-T. The identical text is published as ITU-T Recommendation X.246.

This second edition cancels and replaces the first edition (ISO/IEC 8823-2:1995), which has been technically revised.

ISO/IEC 8823 consists of the following parts, under the general title Information technology — Open Systems Interconnection — Connection-oriented presentation protocol:

• Part 1: Protocol specification
• Part 2: Protocol Implementation Conformance Statement (PICS) proforma

Annex A forms an integral part of this part of ISO/IEC 8823. Annex B is for information only.

Introduction

This Recommendation | International Standard is one of a set of Recommendations | International Standards produced to facilitate the interconnection of information processing systems. It is related to other Recommendations and International Standards in the set as defined by the Reference Model for Open Systems Interconnection (see ITU-T Rec. X.200 | ISO/IEC 7498-1). The Reference Model subdivides the area of standardization for interconnection into a series of layers of specification, each of manageable size.

The goal of Open Systems Interconnection is to allow, with a mimum of technical agreement outside the interconnection standards, the interconnection of information processing systems:

• from different manufacturers;
• under different managements;
• of different levels of complexity; and
• of different technologies.

ITU-T Rec. X.226 | ISO/IEC 8823-1 specifies the connection-oriented presentation protocol. It specifies a common encoding and a number of functional units of presentation protocol procedures to be used to meet the needs of presentation-service-users.

To evaluate the conformance of a particular implementation, it is necessary to have a description of the capabilities and options which have been implemented. Such a description is called a Protocol Implementation Conformance Statement (PICS).

This Recommendation | International Standard includes the PICS proforma for the connection-oriented presentation protocol as defined in ITU-T Rec. X.226 | ISO/IEC 8823-1.

1 Scope

This Recommendation | International Standard provides the Protocol Implementation Conformance Statement (PICS) proforma for the connection-oriented presentation protocol specified in ITU-T Rec. X.226 | ISO/IEC 8823-1. This PICS proforma is in compliance with the relevant requirements, and in accordance with the relevant guidance, given in ITU-T Rec. X.296 | ISO/IEC 9646-7. Detail of the use of this proforma is provided in this Recommendation | International Standard.

The supplier of an implementation which is claimed to conform to ITU-T Rec. X.226 | ISO/IEC 8823-1 is required to complete a copy of the PICS proforma provided in Annex A, and is required to provide the information necessary to identify both the supplier and the implementation.

2 Normative references

The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation | International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and the parties to agreements based on this Recommendation | International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations.

2.1 Identical Recommendations | International Standards

2.2 Paired Recommendations | International Standards equivalent in technical content

2.3 Additional references

3 Definitions

For the purposes of this Recommendation | International Standard, the following definitions apply.

3.1 Terms defined in ITU-T Rec. X.226 | ISO/IEC 8823-1

3.2 Terms defined in ITU-T Rec. X.290 | ISO/IEC 9646-1

• a) Implementation conformance statement proforma;
• b) Implementation conformance statement;
• c) Protocol Implementation Conformance Statement (PICS);
• d) PICS proforma.

3.3 Additional terms

• a) Requestor: the PPM that initiates a particular action;
• b) Acceptor: the PPM that accepts a particular action.